Surveillance Equipment3D PrintersAll CamerasAll GPS DevicesAll Home AssistantsAll PhonesAll Resold at WalmartAll Security CamerasApple HomeKit Compatible DevicesArloAudio Visual AccessoriesCell Phone AccessoriesComputer AccessoriesComputer ComponentsComputer MonitorsDesktop ComputersGeneral Electronic AccessoriesGoogleGoogle HomeGPS TrackersGrades 6-12 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioPrinters & SuppliesResold ElectronicsResold Garden & ToolsRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSamsungSamsung SmartThings Compatible DevicesSanyoSecurity CamerasSecurity Cameras and Security Camera SystemsSharpShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Cameras by TypeSmart Energy and LightingSmart Health and FitnessSmart Home Assistants, Controllers & HubsSmart SpeakersSurveillance CamerasTV AccessoriesWorks with AlexaWorks with Google Assistant
Sort by|
Surveillance Equipment3D PrintersAll CamerasAll GPS DevicesAll Home AssistantsAll PhonesAll Resold at WalmartAll Security CamerasApple HomeKit Compatible DevicesArloAudio Visual AccessoriesCell Phone AccessoriesComputer AccessoriesComputer ComponentsComputer MonitorsDesktop ComputersGeneral Electronic AccessoriesGoogleGoogle HomeGPS TrackersGrades 6-12 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioPrinters & SuppliesResold ElectronicsResold Garden & ToolsRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSamsungSamsung SmartThings Compatible DevicesSanyoSecurity CamerasSecurity Cameras and Security Camera SystemsSharpShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Cameras by TypeSmart Energy and LightingSmart Health and FitnessSmart Home Assistants, Controllers & HubsSmart SpeakersSurveillance CamerasTV AccessoriesWorks with AlexaWorks with Google Assistant
Electronic Sensor(416)
Uses item details. Price when purchased online
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $69.88 $34.94/ea
Sponsored
$6988
current price $69.88$34.94/ea
From $34.94
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1154.3 out of 5 Stars. 115 reviews
Save with
eMACROS Pro 4 Smart Solar Driveway Alarm (2.4G Wi-Fi Only) - App Push Notifications, 1/2 Mile Wireless Range Motion Sensor & Rechargeable Base Station with 3-Day Backup (No Camera) $56.99
Sponsored
$5699
current price $56.99eMACROS Pro 4 Smart Solar Driveway Alarm (2.4G Wi-Fi Only) - App Push Notifications, 1/2 Mile Wireless Range Motion Sensor & Rechargeable Base Station with 3-Day Backup (No Camera)
15 out of 5 Stars. 1 reviews
Save with
Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White From $81.75 Was $85.29
Sponsored
From$8175
$85.29
Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White
184.4 out of 5 Stars. 18 reviews
Save with
eMACROS Motion Sensor Weatherproof Adjustable 1/2 Mile Long Range Solar Wireless Driveway Alarm From $28.04
Sponsored
From$2804
eMACROS Motion Sensor Weatherproof Adjustable 1/2 Mile Long Range Solar Wireless Driveway Alarm
3444.6 out of 5 Stars. 344 reviews
Save with
Bitiwend, 16ft Black Motion Household Sensors & Alarms
Bitiwend, 16ft Black Motion Household Sensors & Alarms
824.1 out of 5 Stars. 82 reviews
Save with
Best seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included) From $10.49
3 options
Available in additional 3 optionsFrom$1049
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
2013.8 out of 5 Stars. 201 reviews
Save with
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack $82.74 Was $99.00
Now$8274
current price Now $82.74, Was $99.00$99.00
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack
1914.4 out of 5 Stars. 191 reviews
Best seller Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property $18.99
$1899
current price $18.99Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property
824 out of 5 Stars. 82 reviews
Save with
Entry Sensor (Pack of 4) Was $49.99
Entry Sensor (Pack of 4)
304.7 out of 5 Stars. 30 reviews
Best seller Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $17.99 Was $31.99
Now$1799
current price Now $17.99, Was $31.99$31.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2744.4 out of 5 Stars. 274 reviews
Save with
Akicon Humidity Sensor Switch for Bathroom Exhaust Fan, Ventilation fan, LED Light, Night Light, Air Moisture Control, Timer Switch for Bathroom Fan, UL Listed, White $43.99
Sponsored
$4399
current price $43.99Akicon Humidity Sensor Switch for Bathroom Exhaust Fan, Ventilation fan, LED Light, Night Light, Air Moisture Control, Timer Switch for Bathroom Fan, UL Listed, White
15 out of 5 Stars. 1 reviews
Save with
Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA $779.00
Sponsored
$77900
current price $779.00Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA
Best seller Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
1244.1 out of 5 Stars. 124 reviews
Save with
Bitiwend Door Chime, Wireless Door Alarm Sensor with 600ft Range 58 Chimes Adjustable Volume Mute Mode LED Indicators, $12.99 Was $14.58
Now$1299
current price Now $12.99, Was $14.58$14.58
Bitiwend Door Chime, Wireless Door Alarm Sensor with 600ft Range 58 Chimes Adjustable Volume Mute Mode LED Indicators,
664.4 out of 5 Stars. 66 reviews
Save with
New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc $3.48
$348
current price $3.48New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc
34.3 out of 5 Stars. 3 reviews
Entry Sensor $13.94
$1394
current price $13.94Entry Sensor
764.7 out of 5 Stars. 76 reviews
Carevas H44632 1-120dB, 387ft White Motion Household Sensors & Alarms
Carevas H44632 1-120dB, 387ft White Motion Household Sensors & Alarms
314.2 out of 5 Stars. 31 reviews
Save with
GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases From $21.99
2 options
Available in additional 2 optionsFrom$2199
GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases
564.7 out of 5 Stars. 56 reviews
Save with
SensorPush HT.w Smart Temperature Sensor & Humidity Sensor - Thermometer & Hygrometer w/App Monitoring - Water Resistant Temperature and Humidity Monitor w/Heat Index for RV, Fridge & More $69.99
$6999
current price $69.99SensorPush HT.w Smart Temperature Sensor & Humidity Sensor - Thermometer & Hygrometer w/App Monitoring - Water Resistant Temperature and Humidity Monitor w/Heat Index for RV, Fridge & More
Save with
Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound $14.50
$1450
current price $14.50Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound
214.1 out of 5 Stars. 21 reviews
Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank $69.99 Was $79.99
Sponsored
Now$6999
current price Now $69.99, Was $79.99$79.99
Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank
24 out of 5 Stars. 2 reviews
Save with
FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use $42.99
Sponsored
$4299
current price $42.99FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use
Flash Deal Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm From $34.99
From$3499
Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
864.6 out of 5 Stars. 86 reviews
Save with
Wsdcam Window Alarm Sensors 125dB Ultra-Slim Wireless Glass Break Detector Vibration Alarm 8 Pack $49.99
$4999
current price $49.99Wsdcam Window Alarm Sensors 125dB Ultra-Slim Wireless Glass Break Detector Vibration Alarm 8 Pack
154.2 out of 5 Stars. 15 reviews
Best seller Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black $27.99 Was $39.99
Now$2799
current price Now $27.99, Was $39.99$39.99
Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black
1304.3 out of 5 Stars. 130 reviews
Save with
Hosmart 1/2 Mile Wireless Driveway Household Sensors & Alarms 2 Piece
Hosmart 1/2 Mile Wireless Driveway Household Sensors & Alarms 2 Piece
674.6 out of 5 Stars. 67 reviews
Save with
XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92
$3292
current price $32.92XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
194.5 out of 5 Stars. 19 reviews
Save with
Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack) $122.13
$12213
current price $122.13Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack)
25 out of 5 Stars. 2 reviews
WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security
WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security
24.5 out of 5 Stars. 2 reviews
Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
104.4 out of 5 Stars. 10 reviews
eMACROS 500ft Range Security Sensors & Alarms, 2 Count From $11.69
Sponsored
From$1169
eMACROS 500ft Range Security Sensors & Alarms, 2 Count
594 out of 5 Stars. 59 reviews
Save with
1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S) From $29.99
Sponsored
From$2999
1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S)
1044.5 out of 5 Stars. 104 reviews
Save with
Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS $29.99
$2999
current price $29.99Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS
44 out of 5 Stars. 4 reviews
Save with
Smart WiFi Door & Window Sensor - Wireless Home Security Entry Detector with Real-Time Message Notifications, Ideal for Monitoring Door/Window Open Status in Smart Homes Was $6.99
Smart WiFi Door & Window Sensor - Wireless Home Security Entry Detector with Real-Time Message Notifications, Ideal for Monitoring Door/Window Open Status in Smart Homes
3-12M 360 Degree Ceiling Occupancy Sensor Motion Sensor Light Switch High Sensitive PIR Motion Sensor Switch $13.59
$1359
current price $13.593-12M 360 Degree Ceiling Occupancy Sensor Motion Sensor Light Switch High Sensitive PIR Motion Sensor Switch
15 out of 5 Stars. 1 reviews
Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $31.95
$3195
current price $31.95Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
Save with
Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black From $13.98
From$1398
Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black
1024.1 out of 5 Stars. 102 reviews
Save with
Solar Alarm Motion Detector with Sound Outdoor Motion Sensor 129db Barking Dog Strobe Light Gunshot Sound Alarm Detector Noise Maker Warning Lamp for Home Villa Yard Farm From $14.99
2 options
Available in additional 2 optionsFrom$1499
Solar Alarm Motion Detector with Sound Outdoor Motion Sensor 129db Barking Dog Strobe Light Gunshot Sound Alarm Detector Noise Maker Warning Lamp for Home Villa Yard Farm
12 out of 5 Stars. 1 reviews
iView S200-3 WiFi Smart Motion Sensor Indoor Outdoor Adjustable Sensibility DIY Easy Installation Long Lasting Battery (3-Pack) $26.99
$2699
current price $26.99iView S200-3 WiFi Smart Motion Sensor Indoor Outdoor Adjustable Sensibility DIY Easy Installation Long Lasting Battery (3-Pack)
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, 120V LED Compatible, Automatic Sensing Solution for Indoor Use at Max Height 10ft, Ideal for Closets and Pantries $14.99
$1499
current price $14.99Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, 120V LED Compatible, Automatic Sensing Solution for Indoor Use at Max Height 10ft, Ideal for Closets and Pantries
Save with
eMACROS 500ft Range Security Sensors & Alarms, 2 Count From $11.69
3 options
Available in additional 3 optionsFrom$1169
eMACROS 500ft Range Security Sensors & Alarms, 2 Count
594 out of 5 Stars. 59 reviews
Save with
Honeywell Entry Level Wireless PIR Motion Sensor - Motion sensor - wireless - 345 MHz $69.05
$6905
current price $69.05Honeywell Entry Level Wireless PIR Motion Sensor - Motion sensor - wireless - 345 MHz
25 out of 5 Stars. 2 reviews
Mighty Mule FM231, 0.02 oz Decibel Rating, Maximum Range Range Display Technology Household Sensors $86.99
$8699
current price $86.99Mighty Mule FM231, 0.02 oz Decibel Rating, Maximum Range Range Display Technology Household Sensors
33.3 out of 5 Stars. 3 reviews
Smart WiFi Door Sensor - 2.76x0.98in Wireless Window Alarm with Real-Time Alerts, Works with Smart Life App for Home Security, Garage Shop Monitoring Was $11.88
Smart WiFi Door Sensor - 2.76x0.98in Wireless Window Alarm with Real-Time Alerts, Works with Smart Life App for Home Security, Garage Shop Monitoring
Vivint dw12 window and door sensor $32.97
$3297
current price $32.97Vivint dw12 window and door sensor
45 out of 5 Stars. 4 reviews
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included From $19.97
2 options
Available in additional 2 optionsFrom$1997
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included
364.2 out of 5 Stars. 36 reviews
Save with
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
Philips Wiz Motion Sensor, White $23.69
$2369
current price $23.69Philips Wiz Motion Sensor, White
464.6 out of 5 Stars. 46 reviews
Save with
SSKFHGI 85 To 265v White Human Body Sensor Floodlight Sensor Pir Sensor Probe Sensor Infrared Sensor Switch Human Body Infrared 1 Was $7.23
SSKFHGI 85 To 265v White Human Body Sensor Floodlight Sensor Pir Sensor Probe Sensor Infrared Sensor Switch Human Body Infrared 1
VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, Remote Control with App, Doors Ringer Alert for Business, Store, Home, Office (6 Sensors + 1 Receiver) $59.90
$5990
current price $59.90VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, Remote Control with App, Doors Ringer Alert for Business, Store, Home, Office (6 Sensors + 1 Receiver)
33.7 out of 5 Stars. 3 reviews
Popular in Electronic Sensor
Related Products
Honeywell Home 5800Mini Wireless Door/ Window Contact
Honeywell Home 5800Mini Wireless Door/ Window Contact$25.99current price $25.99Tuya Door Window Sensor Control Door Sensor Contact Sensor Magnetic Sensor Works Alexa ,Easy Install
Tuya Door Window Sensor Control Door Sensor Contact Sensor Magnetic Sensor Works Alexa ,Easy Install$33.60current price $33.60Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack
Wsdcam Glass Break Sensor Alarm 125dB Wireless Detector Vibration for Window Door Security - 4 Pack$27.99current price $27.99Honeywell WAVE2 Siren, Dual Tone, Wall Mount, Warning Alarm
Honeywell WAVE2 Siren, Dual Tone, Wall Mount, Warning Alarm$22.85current price $22.85Door/Window Sensor with External Contact Input
Door/Window Sensor with External Contact Input$31.99current price $31.99Honeywell Ademco 5816WMWH White Door/Window Transmitter w/Magnet
Honeywell Ademco 5816WMWH White Door/Window Transmitter w/Magnet$28.85current price $28.85Yale AC-DC Sync Smart Home Alarm Accessory Door/Window Sensor App Control, for Securing Main Access Points, White
Yale AC-DC Sync Smart Home Alarm Accessory Door/Window Sensor App Control, for Securing Main Access Points, White$35.68current price $35.68EVA LOGIK Modern Ultra-Thin Window Alarm with Loud 120dB Alarm and Vibration Sensors Compatible with Virtually Any Window, Glass Break Alarm Perfect for Home, Office, Dorm Room- 4 Pack
EVA LOGIK Modern Ultra-Thin Window Alarm with Loud 120dB Alarm and Vibration Sensors Compatible with Virtually Any Window, Glass Break Alarm Perfect for Home, Office, Dorm Room- 4 Pack
Caregiver Smart Solutions Individual Temperature and Humidity Sensor
Caregiver Smart Solutions Individual Temperature and Humidity Sensor$79.00current price $79.00Qolsys QW9104840 IQ Remote Touchscreen Alarm Keypad
Qolsys QW9104840 IQ Remote Touchscreen Alarm Keypad$279.99current price $279.99Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required
Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required$28.99current price $28.99
